Evaluate the expression for the given replacement values.x - 4.1y, for x = 42.6, y = 4.5

A. 156.21
B. 24.15
C. 182.70
D. 34.0

Answer: B

Mathematics

Calculate the arc length of the indicated portion of the curve r(t).r(t) = t3/2i + (5t sin t)j + (5t cos t)k ; -4 ? t ? 6

A. 150 B. 270 C. 140 D. 100

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Mathematics

Write the statement indicated.Write the negation of the following:The test is difficult.

A. The test is not very easy. B. The test is not difficult. C. The test is not easy. D. The test is very difficult.

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Mathematics

Find the product. Assume all variables have non-negative values.( +)( -)

A. m - 2 + n
B. m² - n²
C. m - n
D. m + n

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Mathematics

Find a basis for the null space of the matrix.A =

A.

B.

C.

D.

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Mathematics